Stencil-cutting machine.



Patented May 13, 902;

No. 699,92l.

s. u. HARTDG. STENCIL CUTTING MACHINE.

(Application filed. July 1:3, 1901.

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(lo ModeL) IPI lullullllltlll a Invenidr: Y J J 7 a &

Patented May I3, I902.

C3 Sheets-Sheet 2 S. D. HARTOG. STENCIL CUTTING MACHINE.

(Application filed July 13, 1901.)

(No Model.)

no. 699,92L- Patented May 13', |9o2 s. n. HARTOG.

STENCIL CUTTING MACHINE.

(Application filed July 13, 19,01)

3 Sheets8heet 3.

(No Nodal.)

UN TED STATES "PATENTI OFFICE.

STEPHEN D. HARTOG, OF ST. LOUIS, MISSOURI, ASSIGNOR- OF TWO-THIRDS TO EDWARD W. MOON AND JOSEPH M. NOVY, OF ST. LOUIS, MISSOURI.

STENCIL-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 699,921, dated May 13, 1902.

Application filed July 18, 1901. Serial No. 68,126. (No model.)

To all whom it may concern:

Be it known that I, STEPHEN D. HARTOG, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Stencil-Cutting Machines, of which the following is a full,'clear, and exact description, reference being had to the accompanying drawings, formingfpart of this specification. I

My invention relates to that class of machines designed to be used in producing stenoils from sheet materials, such as paper or metal.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a top or plan view of the machine. Fig. II is a view part in vertical section' and partin elevation. Fig. III is a detail top or plan view of the indeX-fingerof the machine. Fig. IV is a detail elevation of the feeding device with the operatingplunger in elevated position. Fig. V is a sim-ilar view to Fig. IV, with the operating-plunger in alowered position. Fig. VI is aview show ing unassembled details of one of the punches and the parts associated therewith. I

1 designates the base of the machine,mounted on feet 2, andprojecting from which is a table 3, on which the sheets of material from which the stencils are to be formed are placed to be operated upon. 'The table 3 has attached to it the usual gage 4, carried by links I 5, that are on bolts '7.

8 designates a bridge attached to the base 1 and extending horizontally across said base at an elevation above it.

9 designates a post vertically positioned in the base 1 and bridge 8. The lower end of the post 9 is reduced and has mounted on it beneaththe base a pinion 10, that receives the teeth of a segment 11, formingpart of the index-finger 12, that is pivoted by a bolt 13 to the, base 1. The index-finger extends rearwardly andupwardly and is provided with a point 14:, adapted to travel across an indexadjustably held by thumb-nuts 6 plate 15, bearing characters corresponding to those of the dies and punches of the machine. 16 designates a disk around the edge of which is arranged a continuous series of dies 17, the configurations of which are in the form of letters or other characters to be cut from the sheet in producing the stencil. The diedisk 16 is fixed to the post 9 bya keying-ring 18, that is fixed to the post 9 and is provided with pins 19, which enter said disk, whereby any movement imparted to the disk is communicated to said post and the pinion 10 to cause a corresponding movement of the index-finger 12, and consequently a travel of the point 14 across the index-plate 15.

20 designates a punch-carrying disk supported at an'elevation above the die-carrying disk 16 and connected to said die-carrying disk by pins 22. The disk 20 is provided'at its upper 'side withfa series of recesses 21, ar-

ranged in a circle and to which more particular reference will hereinafter be made.

of the die 17, that it immediately surmounts,

in order that when the punch is lowered to its corresponding die. it will fit thereto to punch asymbol corresponding to the punch and die from the sheet material fed through the ma- I chine.

Each punch 23 is provided with pin connection to a plunger 24. (See Figs. II and VI.) The upper end of each plunger is red'uced'at 25 and is countersunk, so as to provide a narrow annular rim 26. Eachplunger is tapped interiorly to receive a screw 27, which is inserted into and bears against the upper end of the plunger.

28 designates guide-pins seated in the disk 20 and surrounded by coil-springs 29.

3O designates lift-bars provided with apertures 31, that receive the guide-pins 28, and apertures 82, that receive thereduced upper end of thepunch-plungers 24:, so that the bars are connected to said plungers beneath the heads of the screws 27. Each lift-bar is provided with a notch 33, (see Fig. V1,) extendingfronrthe aperture'32, and in order to hold the punch-plunger from'rotation the narrow rim 26 of the plunger is upsetinto the notch 33 when the partsare being assembled by means of any suitable implement. The liftbars 30 serve as guides for the punch-plum gers, preventing rotation thereof and main taining them in proper alinement, and they are of further service in effecting the elevation of the plungers and holding them in elevated positions under the influence of the springs 29, which rest against the under sides of the bars. Each lift-bar is provided with an ontwardly-projectiug extension 34.

35 designates the punch operating or depressing plunger, provided with an opening 36, that receives the arm 37 of the operatinglever 38, pivoted to the bridge 8 and normally upheld by a spring 39. The operating-lever is provided at its inner end with a fork 40.

41 designatesaslidebar mounted in a guideway beneath the bridge and provided with a pin 42, that receives the engagement of the fork 40, the slide-bar being adapted to be reciprocated in its guideway in the operation of the lever 38. Projecting upwardly from the slide-bar4l at its inner end is an inclined cam 43, and projecting downwardly from the slidebar at a short distance from its inner end is a lower inclined cam 44.

45 designates a vertical retaining-pin reciprocally mounted in the bridge 8 and provided at its lower end with a stem 46, adapted to enter either of the recesses 21 in the punchcarrying disk 20. This retaining-pin 45' is provided with an aperture 47, positioned in alinement with the slide-bar 41 and arranged to receive said bar. \Vhen the disks 16 and 20 are rotated to the proper position for the operation of the desired punch 23 into the corresponding die 17 to cut a character in the stencil-sheet, the lever 38 is depressed and the plunger 35 thereby lowered to carry the punch down wardlyinto the die. At the same time the movement of the lever 38 causes the slide-bar 41 to travel inwardly, and the cam 44 rides into the aperture 47 in the retainingpin 45 and causes the pin to be lowered, so that its stem enters one of'the recesses 21 and serves to hold the disks 1G and 20 from rotation while the stencil-cutting operation is being performed. After the cutting operation has been effected the lever 38 is raised and the slide-bar 41 is caused to move outwardly, so that the cam 44 is moved out of the retaining-pin and the cam 43 is moved thereinto, as seen in Fig. II, thereby again elevating the retaining-pin and freeing the disks 16 and 20. As the lever 38 is elevated the plunger 35 is carried upwardly therewith and the punch-plunger is raised by reason of the leg 35, carried by the plunger 35, engaging beneath the extension 34 of the lift-bar 30, applied to the punch.

48 is a stripper supported above the die 17 and beneath which the stencil-sheet is passed.

In the practical use of the machine the disks 16 and 20 are rotated by grasping the disk 20 and moving it to bring the dies and punches to the desired positions previous to the cutting operation.

The mechanism by which the stencil-sheet is fed will now be described.

49 designates a vertical slide-bar arranged with may be elevated.

to operate in a guideway between the forward end of the bridge 8 and a plate 50, attached thereto. The slide-bar 49 is normally held depressed by a spring 51, that connects the bar to the bridge 8.

52 is a roller journaled to the base 1 of the machine, and surmounting said roller is a feed-roller 53, mounted on a shaft 54, that is journaled in the vertical slide-bar 49 and is provided with a knob 55, by which thefeedroller may be rotated manually and also by which said roller and parts associated there- On the shaft 54 is'a ratchet-wheel 56, that receives the engagement of a pawl 57, carried by a rocker-arm 58, loosely mounted on the inner end of the shaft 54 and upheld by a spring 59, that is attached to a stud (SO, projecting from the rocker-arm and which connects said rockerarm to the bridge 8. The rocker-arm 58 is provided at its upper edge with a double incline. (See Figs. IV and V.) On the downward travel of the punch-operating plunger 35 a stud 35, carried, by the leg 35 of said plunger, rides against the inclined upper edges of the rocker-arm 58, as seen, Fig. V, thereby causing said arm to be thrown downwardly from the position seen in Fig. IV to that seen in Fig. V. said rocker-arm the pawl 57, being in e11- gagement with the ratchet-wheel 56,'causes rotation of said ratchet-wheel and corresponding rotation of the feed-roller 53, and said roller by engagement with the stencil-sheet positioned beneath it moves said sheet the required distance to eifect the proper spacing between the characters cut in the stencilsheet. It will be readily understood that the feeding of the sheet is accomplished each time before the punch 23 reaches the die 17, so that the stencil-sheet is at rest at the time of the punching operation. On the operating-lever 38 being raised and the punch 23 being withdrawn from the stencil-sheet the stud 35 is elevated with the plunger 35, and the rocker-arm 58 is drawn upwardly by the spring 59, moving the pawl 57 over the ratchetteeth into position for the next operation of the feed-roller 53.

In the practical use of the machine the sheet of paper to be cut to produce a stencil-sheet is placed on the table 3, so as to project onto the die-disk 19, beneath the stripper 48, and the desired characters in the dies and punches are brought to the stripper 48 by rotation of the punch and die disk. The operating-lever 38 is then depressed and the retaining-pin 45 is moved into engagement with the punchdisk to hold said disk from rotation while the character is being punched in the stencilsheet. A continuous movement of the opcrating-lever causes the plunger 35 to be depressed upon the punch-plunger 24, that is over the stripper 48, and said plunger is carried downwardly until its punch passes through the stencil-sheet into the die immediately beneath it, thereby producing the do- In the movement of IIO sired character in the stencil-sheet. Upon the release of the operating-lever the parts assume their normal positions under the influence of the springs that control them, and on the next operation the feeding mechanism is actuated to feed the stencil-sheet forwardly ready for the next impression.

I claim as my invention- 1. In a stencil-cutting machine, the combination with a punch-disk, punches carried thereby and an operating-lever, of independently-mounted retaining means arranged for engagement with the punch-disk, and means connected with the operating-lever moving the retaining means into engagement with the punch-disks in advance of the punching of the stencil.

2. In a stencil-cutting machine, the combination with a punch-disk and punch carried thereby, of a vertically-movable retainingpin, a transversely-movable slide-bar moving the retaining-pin positively into and out of engagement with the punch-disk, and single means for operating the punches and slidebar.

In a stencil-cutting machine, the combination with a die-disk and dies carried thereby, and a punch-disk and punches carried thereby, of an operating-lever, a retainingpin arranged for engagement with said punchdisk, and a slide-bar positioned in said retaining-pin and adapted to receive the engagement of said operating-lever, substantially as described.

4. In a stencil-cutting machine, the combination with a die-disk and dies carried thereby, and a punch-disk and punches carried thereby, of an operating-lever, a retainingpin arranged for engagement with said punchdisk, a slide-bar arranged to operatein said retaining-pin, downwardly and upwardly extending cams carried by said slide-bar, said slide bar being adapted to receive the connection of said operating -.lever to move said cams into said retaining-pin, substantially as described.

5. In a stencil-cutting machine, the combination with a die-disk and dies carried thereby, a punch-disk and punches carried thereby, plungers by which said punches are carried, of lift-bars attached to said plungers, guide-pins on which said lift-bars ride and springs surrounding said guide-pins and adapted to bear against the under sides of said lift-bars, substantially as described.

6. In a stencil-cutting machine, the combination with plunger carrying a punch and operating means for the plunger, of a lift-bar attached to said plunger, and a spring normally rasing the lift bar at one end and means carried by the plunger operating means for raising it at the other'end.

7. In a stencil-cutting machine, the combination with a die-disk and dies carried thereby, a punch-disk and punches carried thereby, a plunger by which said punches are depressed, of an operating-plunger, a stud projecting from said operating-plunger, and a feeding mechanism comprising a vertical slide-bar, feed-wheels journaled to said slidebar, a ratchet-wheel and a spring-supported rocker-arm carrying a pawl adapted for engagement with said ratchet-wheel and arranged to receive the engagement of a stud carried'by said operating-plunger, substantially as described.

STEPHEN D. HAR'IOG.

In'presence of E. S. KNIGHT, MABEL A. L. THIERRY; 

